| Vertices: | 20 (20[3]) |
| Faces: | 12 (regular pentagons) |
| Edges: | 30 (all same length) |
| Symmetry: | Full Icosahedral (Ih) |
| Dihedral Angle: | acos(−sqrt(5)/5) | ≈116.565051177 degrees |
| Dual Solid: | Icosahedron |
| (values below based on midscribed radius = 1) |
| Edge Length: | 3−sqrt(5) | ≈0.76393202250021030359 |
| Circumscribed Radius: | (sqrt(15)−sqrt(3))/2 | ≈1.0704662693192697958 |
| Midscribed Radius: | 1 |
| Inscribed Radius: | sqrt(10*(5+sqrt(5)))/10 | ≈0.85065080835203993218 |
| Volume: | 2*(3*sqrt(5)−5) | ≈3.41640786499873817846 |
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